Quote:
Originally Posted by Dudenhoeffer006
So i'm getting a 302 for free, I want to build it up but i'm thinking stock displacement, but i have been wondering lately if maybe a 347 stroker would be more fun, I do like torque. I was thinking 1.6 roller rockers, forged internals, some sort of performance heads with head studs and bigger valves, trick flow intake, a new TB, a mild cam, and i am raising the compression too. I am just looking for some input about what kind of heads and where to get most of it and who from. My goal when i am finished is to be at 300 rwhp, if not a little more. any other suggestions you can give me will be great. I really want some good suggestions on what kind of cam to use since there are a lot of them out there to choose from.
I am also looking for a shell either a 91-93 or I really want the 94-95 body style, Just a few questions. if i can get a v6 car that has a blown up engine can i get like the 5.0 motor mounts and wiring harness and put the 302 in it? I really dont want to pay more than $800 for a shell (complete roller). I also am looking for a 5 spd transmission to put in it just for the fun factor, so any suggestions on what tranny to go with to hold up to all the power i plan on running through it would be great.
Thanks in advance for any help you can give me
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347s aren't bad, however, due to their larger size, they do wear down substancially faster than other blocks, they're generally only good for about 100K then it's time for a rebuild. 331s are much more reliable as they don't put as much wear on the walls of the engine block.
Another thing to consider is going to be getting the right cam, but this will depend on what body style you get (foxbody) you can do pretty much anything (sn-95) you'll be more restricted to steeda and a handful of comp-cams due to their overly sensitive ECU. A good "in general" cam is the steeda #19, but if you get a fox, you can get the more agressive steeda #20 (I think that's it's number).
You'll also want a good balance of air flow, you just don't get random heads and start building. AFRs are very good flowing heads, but to comp you need a good cam to meet that head performance range, and good flowing intake as well.
Me I went the middle route. I'm using a stock cam (sn-95 here), ported GT-40 X303s, 1.7 roller rockers (these compliment sn-95s better than foxes as they add lift to the cam, but doesn't screw with the ecu any), ported upper/lower cobra intakes, 75mm TB (should have gone 70, this is my only mistake in the build).
Another thing to keep in mind when getting a cam is that you have to get the approprate push rods (length wise), and the proper springs for that added lift. Too short of push rods and you can't get the roller rockers will not seat properly on the rods and will not open/close the valves properly, too long and they'll open the valves too much. Get springs that are too weak for the cam lift (bigger cam stock springs) and they'll give too much and blow, too strong of a spring, and they won't give enough and cause other issues. So it's a fine balance you have to achieve.
Generally I'd recommend the following for a middle line build:
Eddelbrock RPM II Intake
70mm TB
1.7 Roller Rockers
Steeda #19 Cam
Eddelbrock Performer Heads
Now of course you can swap out whatever you wish. This setup will make about 5 rwhp more than my GT-40 setup (equal cams here, this setup would make around 25 rwhp more than mine due to the cam), but I like the GT-40 set up as I didn't have to do nearly as much modifing as I would of had to being that all 5.0 aftermarket parts are made for the foxbody, but have other parts that can be bought to allow them to be properly fitted to sn-95s.
Also, no you can't use a V6 base and drop in a 5.0, way too much work involved. Think of it like this, the V6 stang is built to use a V6, the 5.0 stang is built to carry the 5.0, you can just swap motors around and everything be fine, there's way more differences than that.